DPK-A型電動(dòng)管道坡口機(jī)DPK-A25 型號(hào)適用管外徑（mm）管壁厚(mm)轉(zhuǎn)速rpm重量kgDPK-A25252.5～3189DPK-A32323～4189.3DPK-A38383～4189.8DPK-A42423～4.51810.2DPK-A48483～4.51811DPK-A51513.5～41811.5DPK-A57573～4.51812.2DPK-A60604～5.51813.1DPK-A76764～61813.6DPK-A83834～61814.5DPK-A89894～61815.6